Mobile device pin pad attachment



FIG. 1 is a front, left side perspective view of a mobile device pin pad attachment showing our new design;

FIG. 2 is a front, bottom perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevation view thereof;

FIG. 7 is a rear elevation view thereof;

FIG. 8 is a left side elevation view thereof; and,

FIG. 9 is a right side elevation view thereof.

The broken lines shown in the drawings represent portions of the mobile device pin pad attachment that form no part of the claimed design. 

CLAIM The ornamental design for a mobile device pin pad attachment, as shown and described. 